GCC 14.0 - Monitor GNU Toolchain CI

GNU-923: Author notified / acknowledged the regression

GNU-925: Kernel build issue, fixed

GNU-926: Author notified, but no reply

GNU-931: author notified, and posted a fix

1. GNU-902: Fix already committed by Andrew.

2. GNU-913: Notified patch author upstream.

3. GNU-919: Notified patch author upstream.

4. GNU-921: Notified patch author upstream and they pushed a fix.

https://linaro.atlassian.net/browse/GNU-891 : author has been notified

GNU-889: qemu has recently changed how to set up the VMA on qemu-user to mimic the host. This broke running tsan (and possible other sanitizers like msan) where its expects specific VMA sizes to lay out the shadow memory correctly. The qemu developers do not consider this a regression, so this would need to work around using qemu options (-R or QEMU_RESERVED_VA).

GNU-888: I could reproduce it with 482551a79a3d3f107f6239679ee74655cfe8707e, but not with a more recent f9ff6fa58217294d63f255dd02abfcc8a074f509.

GNU-893: autor has been notified and I have created https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111156

GNU-892: autor has been notified. The issues seems to be simple, so I have not opened a bug report for it (yet).

GNU-890: autor has been notified.

GNU-895: autor has been notified.

GNU-898: I reopened the bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111156 , since it was closed as dup of an unrelated issue.

GNU-876: Not a GCC bug, rather a side-effect of how build & run the tests

GNU-878: Updated existing bugzilla and notified the author https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110378

GNU-879: Notified the author and created https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110986

Also investigated a GDB pre-commit failure and reported back: https://sourceware.org/pipermail/gdb-patches/2023-August/201547.html